Question

PQRS is a rhombus. PR =40cm, QR =42cm,then find perimeter of it.

Answer 1

the Rhombus whose sides are 42/2 is equal to 21 cm and 40/2 is equal to 20 CM. Hence hypotenuse of rhombus is

= [21^2+20^2]^0.5

= [441+400]^0.5

= 841^0.5 cm

so the perimeter of rhombus is 4×841^0.5 cm